31010100223123 has 16 divisors (see below), whose sum is σ = 36164462169600. Its totient is φ = 26579292117000.

The previous prime is 31010100223049. The next prime is 31010100223189. The reversal of 31010100223123 is 32132200101013.

It is not a de Polignac number, because 31010100223123 - 2⁹ = 31010100222611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31010100223123.

It is not an unprimeable number, because it can be changed into a prime (31010100220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10298448 + ... + 12964498.

It is an arithmetic number, because the mean of its divisors is an integer number (2260278885600).

Almost surely, 2^{31010100223123} is an apocalyptic number.

31010100223123 is a deficient number, since it is larger than the sum of its proper divisors (5154361946477).

31010100223123 is an equidigital number, since it uses as much as digits as its factorization.

31010100223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699983 (or 2699969 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31010100223123 its reverse (32132200101013), we get a palindrome (63142300324136).

The spelling of 31010100223123 in words is "thirty-one trillion, ten billion, one hundred million, two hundred twenty-three thousand, one hundred twenty-three".